VOLVO
ECM-P011221 - Intake Air Temperature Sensor 1 Circuit Low Input. General Signal Failures. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Vis modeller per årsmodell og motor (6)
- Volvo S80 (2007–)2007–2009Kun motor: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Kun motor: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Alle motorer unntatt: B6304T2
- Volvo XC70 (2008–)2008Alle motorer unntatt: B6324S
- Volvo XC70 (2008–)2009Kun motor: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Kun motor: D5244T18, D5244T5
Hva betyr feilkoden?
The control module keeps checking the reading from the temperature sensor built into the mass air flow sensor while the engine runs. If the signal is too low, the fault code is set.
Mulige årsaker
- Damaged air temperature sensor inside the mass air flow sensor
- Contact resistance or oxidation in the connector
Hva du kan gjøre
- 1Read the fault code status with the ignition on and check that the fault is not active when the test is finished. Clear the code and road test the vehicle
- 2Check that the connector to the mass air flow sensor is firmly seated and free from oxidation and contact resistance
- 3With the ignition on, use a multimeter to check that the connector receives supply voltage. It should match the battery voltage
- 4If the connector and wiring are in order and the fault remains, have a workshop check or replace the mass air flow sensor
Symptomer du kan merke1
- The engine has poor performance and lacks power
Hva feilen kan påvirke2
- Engine torque may be limited
- The control module uses a calculated value for the air temperature
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